Synthesis of (pyrimidin-4-yloxy)- and (pyrimidin-3-yl)acetyl azides and their rearrangement to carbamates and ureas

Autor: Milda M. Burbuliene, Povilas Vainilavicius, Zana Kacnova, Virginija Jakubkiene
Rok vydání: 2010
Předmět:
Zdroj: ARKIVOC, Vol 2010, Iss 11, Pp 39-48 (2010)
ISSN: 1551-7012
DOI: 10.3998/ark.5550190.0011.b04
Popis: On nitrosation of (pyrimidin-4-yloxy)and (pyrimidin-3-yl)acetohydrazides 2, 3 with sodium nitrite in diluted hydrochloric acid at 0-5 °C the corresponding (pyrimidinyl)acetyl azides 5, 6 were prepared. Azides 5, 6 undergo Curtius rearrangement in the reactions with alcohols, phenols, arylamines or water to give carbamates 7-9, 11-14 or ureas 15-21.
Databáze: OpenAIRE